NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Martin Beraja

Department of Economics
MIT
50 Memorial Drive
Cambridge, MA 02142
Tel: 617/258-6022

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NBER Program Affiliations: EFG , ME
NBER Affiliation: Faculty Research Fellow
Institutional Affiliation: Massachusetts Institute of Technology

NBER Working Papers and Publications

January 2020Technological Transitions with Skill Heterogeneity Across Generations
with Rodrigo Adão, Nitya Pandalai-Nayar: w26625
Why are some technological transitions particularly unequal and slow to play out? We develop a theory to study transitions after technological innovations driven by worker reallocation within a generation and changes in the skill distribution across generations. The economy’s transitional dynamics have a representation as a q-theory of skill investment. We exploit this in two ways. First, to show that technology-skill specificity and the cost of skill investment determine how unequal and slow transitions are by affecting the two adjustment margins in the theory. Second, to connect these determinants to measurable, short-horizon changes in labor market outcomes within and between generations. We then empirically analyze the adjustment to recent cognitive-biased innovations in developed econ...
March 2017Regional Heterogeneity and Monetary Policy
with Andreas Fuster, Erik Hurst, Joseph Vavra: w23270
We argue that the time-varying regional distribution of housing equity influences the aggregate consequences of monetary policy through its effects on mortgage refinancing. Using detailed loan-level data, we show that regional differences in housing equity affect refinancing and spending responses to interest rate cuts but that these effects vary over time with changes in the regional distribution of house price growth. We then build a heterogeneous household model of refinancing with both mortgage borrowers and lenders and use it to explore the aggregate implications for monetary policy arising from our regional evidence. We find that the 2008 equity distribution made spending in depressed regions less responsive to interest rate cuts, thus dampening aggregate stimulus and increasing regi...
February 2016The Aggregate Implications of Regional Business Cycles
with Erik Hurst, Juan Ospina: w21956
Making inferences about aggregate business cycles from regional variation alone is diffcult because of economic channels and shocks that differ between regional and aggregate economies. However, we argue that regional business cycles contain valuable information that can help discipline models of aggregate fluctuations. We begin by documenting a strong relationship across US states between local employment and wage growth during the Great Recession. This relationship is much weaker in US aggregates. Then, we present a methodology that combines such regional and aggregate data in order to estimate a medium-scale New Keynesian DSGE model. We find that aggregate demand shocks were important drivers of aggregate employment during the Great Recession, but the wage stickiness necessary for them...

Published: Martin Beraja & Erik Hurst & Juan Ospina, 2019. "The Aggregate Implications of Regional Business Cycles," Econometrica, Econometric Society, vol. 87(6), pages 1789-1833, November. citation courtesy of

 
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